Added a Compander UGen.
Added a Compander UGen.

andrewyoung1991/supriya,Pulgama/supriya,Pulgama/supriya,Pulgama/supriya,andrewyoung1991/supriya,Pulgama/supriya,josiah-wolf-oberholtzer/supriya,andrewyoung1991/supriya